Spring-motor.



PATBNTED MAR. 8,

J'. B; vGIBBS.

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`SPRING, MOTOR. APPLIUATION FILEDIAPR. 4, 1903.

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wimmo' by CMM No. 753,873. PATBNTBD MAR.l 8, 1904.

' J.l E. GIBBs. Y

v SPRING MOTOR.

APPLIOATIVON FILED APB. 4, 1903. no uoDnL.

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' 4 f5'. G/HS Wmme@ l 'i l patenten Mami; s, 1904.

JAMEs EDWIN GIBBS, OF BRIDGEWTER, VIRGINIA, vAssIeNoR oE ONE- HALF TOGEORGE A. HORN, OF

NEWARK, NEW YORK.-

SPRING-Moron.

SPECIFICATION forming' partrof Letters Patent No. 753,873, dated March8, 1904. Application iiled April 4, 1903l Serial No. 151,059. (Nomodel.) Y

To all whom it may concern.-

Be it known that I, JAMES EDWIN GIBBS, a citizen of the United States,and a resident of Bridgewater, in the county of Rockingham and State ofVirginia, have made a certain new and useful lnvention in Spring-Motors;and

I declare the following to be a full, clear, and

exact description of the same, such as will enable others skilled inthe-art to which it appertains to make and use the invention, referencebeing had to the accompanying drawings, and to letters and figures ofreference marked thereon, which form a part of this specification.

Figure l is a central horizontal section of the invention as applied.Fig. 2 is aside elevation of the invention. Fig. 3 is a detail viewshowing lthe casing for the mainspring inside elevation and the topseparated therefrom. Fig. 4 is a detail view of the mainspring in itscasing. Fig. 5 is a detail view ofthe worm-gearing.

The invention relates to spring-motors designed chieiiy forsewing-machines; and it consists in the novel construction andcombinations of parts, as hereinafter set forth.

In the accompanying drawings, illustrating the invention, the 'letter adesignates the supporting-frame, comprising a pedestal b and anadjustable holder-frame c. The motor-case d is pivoted to the arms ofthe holder-frame and contains the mainspring, its drum, thedriving-shaft, and train of gearing.

The pedestal may be of ornamental -form and is provided with a bearingfor the threaded stem e of the holder-frame, which is engaged by thehand-wheel f, whereby the holder-frame is adjusted to proper height withreference to the machine to which the motor is to be applied. Thepedestal is also provided with `guide-bearings g for the lateral guidesla of the holder-frame, these serving to hold it steady when inoperation.

The motor-case is suspended between the arms of the holder-frame by thepivots k, which are horizontally opposite each other, in such wise thatthe motor-case can be adjusted to either horizontal or vertical positionand so that it can be readily reversed in either position. Theset-screws l, having a threaded connection with the arms of theholderframe, serve to fix the adjustment of the motor-case by engagementwith the circumferential wall of such case, The pivots k are usuallyseated in open slot-bearings of the arms of the holder-frame, so thatthe casing can be readily'removed and replaced in position.

The shaft m extends centrally through the motor-case, and its endsproject from opposite sides of the case, these ends being provided withseats at n for engagement with the driving-armp. This arrn is providedwith a slotted extension q, which is designed to adjustably engage thedriving-wheel of the machine to be operated. When used in connectionwith the stem of a fly-fan or other shaft to be rotated, the engagingcatch may be of socket form, connected directly to the projecting end ofthe driving-shaft of the motor.

Around the middle portion of the drivingshaft m is the hollow arbor s,to which is attached the mainspring, its outer end being connected tothe mainspring-drum u. On

. this arbor is secured a worm-wheel w, which is engaged by the worm o,the shaft of which is provided with a seat at its end for theapplication of a winding-crank for winding up the spring. Thewinding-gear is designed to be covered in by means of a casing, whichmay be detachable from the main casing. This arbor passes into the hubof the drum, which extends through a partition in the casing, and tosaid hub on the opposite side r from the drum is secured the centerwheel 2, which engages in train the gears 3, 4, and 5, the latterengaging spur-gear 8, fast to shaft m.

In the construction illustrated the drum gear-wheel 2 upon shaft mengages the pinion 6 of the gear-wheel 3 upon shaft m', which engagesthe pinion 7 of the gear-wheel 4C upon shaft m2, which engages thepinion 5L of vgearwheel 5 upon shaft m3, which is secured to said shaftm. A brake-wheel a is provided on the `shaft m in order to enable theoperator to slow up or stop the movement when necessary. It is notdesigned usually to employ a ratchet in connection with the mechanismtohold the spring when wound, the train of gearing being suiicient forthis purpose, as it is easily controlled by the brake-wheel.

This motor is designed to be readily inverti- IOO places it under theready control of the operator. This motor made on a larger scale canalso be used for small power-launches.

Having described this invention, What I claim, and desire to secure byLetters Patent, 1s-

rIhe combination with an invertible springrnotor, and a pedestal, of aholding-frame, its threaded adjusting-stem and guides, the hand- Wheelon said stem, and the horizontal pivots of the spring-motor inconnection with said holder-frame, substantially as specified.

In testimony whereof I aiiiX my signature in presence of two Witnesses.

JAMES EDWIN GIBBS.

Witnesses ALLIE DAvIEs, NELLE WHITMORE.

